Matters to Be Observed When Using This Product

■ Do not use the product in a structure sealed by potting or molding. The pressure of a molding resin on a capacitor may

deform the capacitor. In addition, the resin covering the capacitor may affect its heat dissipation performance or may leak

into the product. These factors lead to the significant degradation of the capacitor’s characteristics and reliability.

There is also a concern that an electrolytic solution permeating the sealing rubber may agglomerate and cause a short

circuit.

■ When the capacitor is used in a circuit where an impact voltage is applied or a high voltage is applied in a short period

(transient phenomenon) or a high pulse voltage is applied, make sure to use the capacitor at a voltage equal to or

lower than its rated voltage.

■ The product contains an electrolytic solution. Improper use of the capacitor leads not only to the rapid degradation of

its characteristics but also to electrolytic solution leakage. These problems damage the circuit board and may lead to

destruction of the entire circuit set.

■ When you see gas coming out of an activated pressure relief valve of a capacitor during use of a circuit set, turn off the

main power supply of the circuit set or pull the power cord plug out of the wall-outlet. If you leave the power supply on and

the capacitor short-circuits, it will damage the circuit, or the gas can turn into a liquid, which will cause the circuit to short.

In the worst case scenarios, these events may develop into a more serious incident, such as burnout of the circuit set.

The gas coming out of the pressure relief valve of a capacitor is not smoke, but is the electrolytic solution in its gaseous

state.

■ When the pressure valve of the capacitor is activated, it emits a high-temperature gas of over 100 ℃. Do not bring your

face near the valve. In case the gas jetting out of the valve gets in your eyes or comes into your mouth, wash your eyes

with water or rinse your mouth immediately. If the gas hits your skin, wash it away with soap.

■ If you touch a terminal of the product during use of the circuit set, you will get an electric shock. The aluminum case of

the product has an exposed part with no insulation. Do not touch the exposed part because it is as dangerous as the

terminal.

■ Do not create a short circuit between terminals of the product by inserting a conductor therebetween. Do not splash a

conductive solution, such as an acidic or alkali solution, on the capacitor. It puts the capacitor in a shorted state,

which causes the circuit to fail and destroys the capacitor as well.

■ When a silicone material containing a relatively large amount of a low-molecular-weight siloxane is located close to the

product, it may cause the capacitor problems with its electrical performance.

■ When electronic equipment having the capacitor built therein is exported to overseas markets, wooden packaging

materials are fumigated with a halogen compound, such as methyl bromide. In such cases, if the packaging material

subjected to the fumigation treatment is not dried sufficiently, halogen remaining on the packaging material may leach

into the capacitor during transportation and trigger a corrosive reaction in the capacitor. When carrying out the fumigation

treatment, carefully examine the dried packaging material to confirm that no halogen remains on the packaging material.

Never fumigate the entire electronic equipment in its packaged state.

■ The service life of the product is affected by service temperatures. In general, a 10 ℃ drop in the service temperature

will double the service life. Use the capacitor at a temperature as low as possible from the upper limit category

temperature.

■ Using a capacitor under a temperature condition outside a specified temperature range causes heavy degradation

of the capacitor characteristics, which may result in breakage of the capacitor. You need to confirm not only the ambient

temperature and internal temperature of the capacitor but also the temperature of the capacitor’s top surface, which is

given by radiant heat from built-in heating elements (a power transistor, IC, resistance, etc.) and heat generated by

self-heating induced by ripple current. Do not place a heating element on the back of the capacitor.

30-Jun-23

　Response to anomalies and handling conditions

　Reliability and product life